| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.processor; |
| |
| import java.util.List; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| |
| import org.apache.camel.Channel; |
| import org.apache.camel.ContextTestSupport; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Message; |
| import org.apache.camel.Processor; |
| import org.apache.camel.ProducerTemplate; |
| import org.apache.camel.Route; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.component.mock.MockEndpoint; |
| import org.apache.camel.impl.EventDrivenConsumerRoute; |
| |
| public class StreamResequencerTest extends ContextTestSupport { |
| |
| protected MockEndpoint resultEndpoint; |
| |
| protected void sendBodyAndHeader(String endpointUri, final Object body, |
| final String headerName, final Object headerValue) { |
| template.send(endpointUri, new Processor() { |
| public void process(Exchange exchange) { |
| Message in = exchange.getIn(); |
| in.setBody(body); |
| in.setHeader(headerName, headerValue); |
| in.setHeader("testCase", getName()); |
| } |
| }); |
| } |
| |
| public void testSendMessagesInWrongOrderButReceiveThemInCorrectOrder() throws Exception { |
| resultEndpoint.expectedBodiesReceived("msg1", "msg2", "msg3", "msg4"); |
| sendBodyAndHeader("direct:start", "msg4", "seqnum", 4L); |
| sendBodyAndHeader("direct:start", "msg1", "seqnum", 1L); |
| sendBodyAndHeader("direct:start", "msg3", "seqnum", 3L); |
| sendBodyAndHeader("direct:start", "msg2", "seqnum", 2L); |
| resultEndpoint.assertIsSatisfied(); |
| } |
| |
| public void testMultithreaded() throws Exception { |
| int numMessages = 100; |
| |
| ExecutorService service = Executors.newFixedThreadPool(2); |
| service.execute(new Sender(context.createProducerTemplate(), 0, numMessages, 2)); |
| service.execute(new Sender(context.createProducerTemplate(), 1, numMessages + 1, 2)); |
| |
| Object[] bodies = new Object[numMessages]; |
| for (int i = 0; i < numMessages; i++) { |
| bodies[i] = "msg" + i; |
| } |
| |
| resultEndpoint.expectedBodiesReceived(bodies); |
| resultEndpoint.setResultWaitTime(20000); |
| resultEndpoint.assertIsSatisfied(); |
| |
| service.shutdownNow(); |
| } |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| disableJMX(); |
| resultEndpoint = getMockEndpoint("mock:result"); |
| } |
| |
| @Override |
| protected void tearDown() throws Exception { |
| super.tearDown(); |
| enableJMX(); |
| } |
| |
| protected RouteBuilder createRouteBuilder() { |
| return new RouteBuilder() { |
| public void configure() { |
| // START SNIPPET: example |
| from("direct:start").resequence(header("seqnum")).stream().to("mock:result"); |
| // END SNIPPET: example |
| } |
| }; |
| } |
| |
| public void testStreamResequencerTypeWithJmx() throws Exception { |
| doTestStreamResequencerType(); |
| } |
| |
| public void testStreamResequencerTypeWithoutJmx() throws Exception { |
| log.debug("This will now fail"); |
| disableJMX(); |
| doTestStreamResequencerType(); |
| } |
| |
| protected void doTestStreamResequencerType() throws Exception { |
| List<Route> list = getRouteList(createRouteBuilder()); |
| assertEquals("Number of routes created: " + list, 1, list.size()); |
| |
| Route route = list.get(0); |
| EventDrivenConsumerRoute consumerRoute = assertIsInstanceOf(EventDrivenConsumerRoute.class, route); |
| |
| Channel channel = unwrapChannel(consumerRoute.getProcessor()); |
| |
| assertIsInstanceOf(DefaultErrorHandler.class, channel.getErrorHandler()); |
| assertIsInstanceOf(StreamResequencer.class, channel.getNextProcessor()); |
| } |
| |
| private static class Sender extends Thread { |
| |
| ProducerTemplate template; |
| |
| int start; |
| int end; |
| int increment; |
| |
| public Sender(ProducerTemplate template, int start, int end, int increment) { |
| this.template = template; |
| this.start = start; |
| this.end = end; |
| this.increment = increment; |
| } |
| |
| @Override |
| public void run() { |
| for (long i = start; i < end; i += increment) { |
| try { |
| Thread.sleep(4); |
| } catch (InterruptedException e) { |
| // ignore |
| } |
| template.sendBodyAndHeader("direct:start", "msg" + i, "seqnum", i); |
| } |
| } |
| |
| } |
| } |
| |